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http://dx.doi.org/10.14481/jkges.2020.21.11.5

Minimum Thickness of Temporary Steel Plate to Prevent Pile Driver Overturning  

Bang, Daepyung (Hyudai Engineering & Construction Safety Team)
Park, Jongyil (Department of Safety Engineering, Seoul National University of Science and Technology)
Kee, Junghun (Department of Safety Engineering, Seoul National University of Science and Technology)
Publication Information
Journal of the Korean GEO-environmental Society / v.21, no.11, 2020 , pp. 5-10 More about this Journal
Abstract
Although pile driver overturning accidents at construction site are not frequent, most leads to serious disasters. The main cause of accidents is uneven settlement of the ground. To prevent this, related guidelines such as KOSHA-C-101-2014, KOSH-A-GUIDE-71-2012, Occupational Safety and Health Standards, and NCS stipulate the installation of steel plates over ground. However, since the required steel plate thickness considering the self-weight of pile drivers and the underlying ground condition is not quantitatively presented, it is randomly applied in the field. In this study, the required minimum steel plate thickness was analyzed based on a numerical analysis (Plaxis 2D). Settlements and soil failure were calculated according to the different type of soils (sand, clay), load distribution and steel plate thickness (10mm, 20mm, 30mm, 40mm). Under all conditions, 10mm steel plate causes soil collapse. From thickness 20mm, the ground uneven subsidence is within 2° of the allowable leader angle.
Keywords
Pile driver; Uneven Subsidence; Safety at construction site;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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